If you ask Italian American writer and Proust scholar André Aciman (Call Me By Your Name), the concept of time is an unwelcome guest when it comes to our memories and imaginations. Hear him draw from the likes of Sigmund Freud, Constantine Cavafy, W. G. Sebald, John Sloan, Éric Rohmer, and Fernando Pessoa in this online talk with HarperCollins' Jonathan Burnham about his new book of essays, Homo Irrealis.